Specialists in Measuring, Monitoring and Control of Current, Power & Energy

143-Solid-Core Zero Sequence Current Transformer

Current Transformers

PTG5-medium-voltage-potential-transformer

Potential Transformers

CTCR-True-RMS-Current-Transformer : Transducers

Transformer Transducers

ACTR-current-transducers

Transducers

Model# HST90U-analog-panel-meters

Meters

Model# S-dc-current-shunt

Accessories

Supply Chain Problems? Not at Flex-Core!

We are going the extra mile to make sure FLEX-CORE is your most reliable supplier. We have significantly increased our inventory of ready-to-ship products such as transformers, transducer, meters, and accessories.

Sales: +1-614-889-6152

143-Solid-Core Zero Sequence Current Transformer

Current Transformers

PTG5-medium-voltage-potential-transformer

Potential Transformers

CTCR-True-RMS-Current-Transformer : Transducers

Transformer Transducers

ACTR-current-transducers

Transducers

Model# HST90U-analog-panel-meters

Meters

Model# S-dc-current-shunt

Accessories

143-Solid-Core Zero Sequence Current Transformer

Current Transformers

PTG5-medium-voltage-potential-transformer

Potential Transformers

CTCR-True-RMS-Current-Transformer : Transducers

Transformer Transducers

ACTR-current-transducers

Transducers

Model# HST90U-analog-panel-meters

Meters

Model# S-dc-current-shunt

Accessories

Our Most Popular Model The FCL Flexible Split-Core Current Transformer

The UL Certified FCL flexible split-core current transformer is designed for easy installation on large bus or wire conductors in order to make electrical load surveys or for continuous monitoring of current.

Directional silicon steel is used for the flexible core. Secondary windings are of copper. The entire unit is encapsulated in silicone rubber which protects against moisture, dirt, oil and corona.

Standard outputs for 1A, 5A, 0.333V, and 1V applications.

FCL Split Core Current Transformer
FCM Revenue Grade Split-Core Current Transformer

NEW: Flex-Core is Excited to Introduce the New Model FCM Revenue Grade Split-Core Current Transformer

The FCM, the newest Revenue Grade Split-Core Current Transformer from FLEX-CORE®, is equipped with the industry standard 5A AC secondary, allowing use with most service entrance Power & Energy Meters. The FCM current transformer is a lightweight and economical alternative to our FCR Revenue Grade Split-Core Current Transformer and offers ratios from 300:5A up to 5000:5A. Flex-Core offers two standard sizes, a 3" X 7.75" and a 4.75" X 12" inside diameter as well as custom sizes and ratios. Dual and multi ratios units are available by request and upon approval.

The FCM and FCR models revolutionize Relay/Metering Class revenue grade current transformers with a new, exciting split-core option. Meets IEEE C57.13 Standards.

Current Transformer Secondary Wire Sizing Calculator

Wire Gauge Sizing Caluclator

Temperature Conversion Calculator

Temperature Conversion Calculator

CT Burden Chart

Current Transformer Burden Chart

Why Choose FLEX-CORE®

FLEX-CORE® manufactures and warehouses a large selection of Transformers, Transducers, Meters and more for measurement, monitoring, and control of current, power, and energy applications.

  • Large in-stock supply of current monitoring & measurement products.
  • Same day shipping available when ordered before 1:00PM Eastern.
  • Shortest lead time available for build-to-order requirements.
  • Custom ratios available.
  • Abundant warehouse stock of complementary catalog items ready for shipment.

Expert Advice & Customer Support

FLEX-CORE® has qualified and experienced engineers that will work with you to suggest the best possible solution for your specific application requirements.

Need Immediate Assistance?
Phone:+1 (614) 889-6152
Sales: sales@flex-core.com
Support: support@flex-core.com

I've never been there and therefore have no experience. I find Corey to be very helpful and pleasant on the phone.
6 months ago
Andrew Herberg
Excellent, friendly, and reliable supplier of CT's and AC metering and sensing doodads. We're always pleased to place orders from FLEX-CORE, as their people are...
3 years ago
Greg Linder
Arthur & company are just fantastic! Extremely helpful in determining what unit I need for my application. They make it easy to...
3 years ago
MT Evans
My experience with Flex Core is entirely satisfactory, due to the easy installation of the CT´s on Power Cabling and Bus Bar of Switchboards
2 years ago
Efren Ortiz
I found the information in choosing a CT very informative. The documents are exact in choosing a CT. This company will be sure to get...
3 years ago
willard chadwell